isSucc = false
function errorHandler(err) 
    isSucc = false;
    print("exception :")
    print(err)
end 
 
function handler() 
    dofile("wifi-biz.lua")
end

function start() 
    --print("isSucc=="..(isSucc and "true" or "false"))
    if(isSucc==false) then
        print("start :")
        isSucc = true
        xpcall(handler, errorHandler)
    end
end

start()
